C9 Christmas Light Strings / Spools

C9 Christmas Light Strings and Spools for custom commercial and residential lighting. Screw C9 bulbs into standard E17 sockets and display fun Christmas light themes. Retrofit LED bulbs and incandescent bulbs with E17 bases are designed to screw in and out of sockets for seasonal lighting and full customization. Add zip plugs to create custom lengths, calculate wattage to shop by amp capacity, and choose from spacing options ranging from close 6" spacing to 15" or even 18" spacing for outlining large buildings with lights. C9 light strings are designed to work with any E17 base bulb.